@IceInkberry yes, exception is in case of banana bonds..

Goodluck to all ! Kill the tests

@Jasmine no exception

How were the NSEs?!

@Abcd you know my teacher taught that in diboranes B-H bridge bond >B-H terminal bond (bond lenghth ) , but B-H bridge >B-H terminal (B.D.E)

After you said no exception I did some ssearch and found you are correct,,, thanks for enlighting me

@did anybody get top scores in their respective scores ?

@EshaManideep Which scores?

NSEs

Yeah, how were the NSEs?

Average

I didnt write it for my own reasons... Though I signed up for it

@EshaManideep why!! You were doing so amazing in the previous years papers!

Yep, I never corrected the time for bubbling

Dumb people, who made these NSEs this way ? Bubbling took me 30 min

Don't fret, you'll do fine...

They want to bubble us our name, my name is huge

And I am poor at bubbling

Esha Manideep Dinne?

@AbhigyanC how do you know ?

@EshaManideep I know you personally

Huh ?

Don't know if you know me... Hahaha

Place ?

I'm kidding... I checked the KVPY sa rank list

I was checking the number of people who qualify and I saw your name

Anyways... Good luck with JEE mains now to everyone

Hooray ! Looking at Allen key, I seem to be getting around 210 in chemistry !

It's party time !

Whoa whoa, virtual party! xD

Congratulations!

Had predicted that the paper would be long, NSEJS was difficult than previous years too, PRMO was difficult too.

@Jasmine the TOTAL banana bond enthalpy (i.e. sum of 2 banana bonds for 1 hydrogen) is greater than the bind enthalpy of SINGLE simple covalent bond. But not for each individual bond.

@Abcd I think no chemistry.stackexchange.com/questions/94067/…

It's even on Wikipedia

@Jasmine you didn't understand what I said

@Abcd what

@Jasmine I'll send the pics from jd lee at night

@Abcd I have it

I will search

chemistry.stackexchange.com/questions/94067/… contradicting comment

I completely trust my teacher and JD lee amd not quora and wikipedia..

@EshaManideep Congratulations!!!

Can someone help me with these (2, 3, 4, 5)?

They're all fact-based

@J_B892 I think that it's pretty good for an 11th grader. Really good!

@AbhigyanC Is (2)'s (D)? And, (4)'s (D)?

@AbhigyanC For 3rd one see en.m.wikipedia.org/wiki/Nef_reaction

@IceInkberry 2 (B), 4 (C)

I thought the exact same answers as you, and got them both wrong...

@AbhigyanC Oh lol okay, will see later. Last one, (D)?

I am literally in my own birthday party answering chem questions xD

@IceInkberry Happy birthday!!

@IceInkberry That's correct

How did you know this one?

@IceInkberry Thanks for Nef reaction

Take a break from chemistry... Enjoy your birthday!

@AbhigyanC Thanks! I think I had read about that. Also, thinking logically a benzene sort of structure is soluble in similar structure and there's no reason for it to be soluble in water. The answer can also be deduced w/ elimation of other options.

About I have read somewhere, I think it's one of the examples in some deviation in Raoult's law

Thanks, and goodbye! :D

Hello

Anyone from 12th here? Someone who has studied carbohydrates?

@Jasmine ignore any contradicting comments. Molly cool is just a high school student like us and he has the right to go wrong. Just trust JD lees info.

@Abcd Doubt

Are you free?

Happy 17th Birthday @IceInkberry . Totally forgot it.

@Dante what is it

Solomons page 823, Formation of ethers in Biomolecules chapter (want me to send a pic?)

I think we have diff editions

so send pic

K, hold on for few minutes

@Abcd My dad is out, I don't have a good camera atm

I'll put the question here in few minutes

@Dante let me check my book and ask you if its the same

Benzyl ether cleavage @Dante ?

Thats the first topic on page 823

Yes, 2rd para

ill be back in 4 minutes/

send your doubt

ok

what do you not get

Isn't anomeric carbon C1?

In the open chain structure they've mentioned C5 as the carbon mentioned as C1 in the ring

I'm talking about the diagram

@IceInkberry Happy Birthday!

back

@Dante C1 , C2 etc arent labelled in my book

Oh the paragraph is quite clear about what it is saying

Ah, you are right

@Dante I suspect you are getting confused between the numbering

I didn't get it initially

@EshaManideep did you see?

PCl3F2 is a symmetric one, isn't it ?

SO, it should be the least, and N2O4 gas is also symmetric, hence I suppose it's zero too

Hmm

So, anser is fourth option ?

Hmm correct.

I have these exceptional ability in eliminating options, that's what I did in 30-40 percent of NSEA questions I have attempted :P

I have to look into the fourth one though

The molecule won't be symmetric

@EshaManideep It is

@EshaManideep How to decide between options 2 and 3 ?? What would your choice be?

So, as he said heating, I would choose C

Sameee as what i thought

but answer gives is B

Hmmm

I should look into the complete process to see what that acetate does

Anyway, am busy now, will be back in 1 hour

Happy birthday @IceInkberry !! Have a successful life!!

My college teacher is fit only for clearing basic level doubts. If I ask him a bit higher level (can't even call it higher level) doubt, he starts talking bullshit trying to hide that he doesn't know the answer. Can someone suggest me any other way I can get my doubts clarified properly? Of course I can ask them here but not many will be online most of the times when I am.

@Abcd D but i dont know how dipole moment is more in solid state

@Jasmine Because solid is $\ce{NO3^- NO+}$ I guess

@Abcd ok

Like for N2O5 we have NO2+ NO3-

But I havent read about N2O4 solid anywhere

Checked JD Lee original

Yes, liquid N2O4 is NO3- and NO+

So I think solid should also be that obviously

Ok

They ask average

Ok

@Jasmine @Dante @EshaManideep Where to get JEE Main previous official papers with official answer keys

@Abcd google.co.in/amp/s/engineering.careers360.com/articles/… here

Will there be changes as NTA conducting exams this year?

@Jasmine see mock tests

Ok

@Abcd You may call it 'obvious' but a reliable source is always a must, especially for a subject like chemistry

aip.scitation.org/doi/abs/10.1063/1.446929?journalCode=jcp

Like Mathematicians crave for rigorous proof, chemists want reliable sources. Haha.

Thank you so much @Abcd @Dante and @Jasmine!

@Abcd I don't think that there's an official website w/ papers like JEE Adv.

@Dante I heard that there are platforms like Topper where they clear your doubts when you send them. Not sure if it's up to mark.

Oh, I see

@Abcd Dehydration of alcohol occurs in presence of strong acid, which is absent here and that's why I think the answer is (2) and not (3).

@IceInkberry You can get the essence/bliss of rigorous proof once you do real analysis in your future studies. Happy birthday !

@Dante I meant Toppr* There might be more!

@EshaManideep Haha, yes. Thank you!

Yes, I've heard about it, never used it though

I know about it because my one of my friends had used it. I didn't ask for review but there were many doubts which she had cleared.

Oh, I see, are you still in contact with that friend? I don't wanna be a pain for you but if you meet her regularly please try to ask if the faculty is up to the mark there.

@Dante, which college do you study in ? You can only answer if you wish

Narayana College

I wonder where do you study?

@Dante Same state(telangana) you might have never heard if my college name 'DELTA Junior college'

And you belong to the top branch?

I'm from Bangalore

Narayana is shit here

Ohh

I thought you are from here

Nope.

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